You could try the Argos dedicated Bush helpline (Bush seeming to be no longer being a respectable brand, just a name bought by a retailer)
Bush (excluding White Goods)
Tel: 0345 604 0105
Monday to Friday: 8am - 7pm
Saturday: 8am - 7pm | Sunday: 10am - 4pm
Ask them whether they support their legacy products like any main brand manufacturer or whether they will just dump you.